Thanks You , Sir :)
1.What is cross section ?
2.why can't we use anyother elements other than uranium such as helium , aluminium , silver ? will they absorb neutrons without fissioning?
3.can human able to do nuclear fusion in Earth ? if yes , say how . if no , why?
4. i want to a lot of things in physics . what are the basics ? how do i invent new things ? what is lacking in a normal man when compared to scientists ?
5.why doesn't a u-238 becomes unstable after absorbing a neutron ? ( it changes into u-239) .
6.does a uranium molecule contain any uranium atoms ( u-238,u-239,...) or only (u-238)?
7.how do scientists extract u-238 atoms correctly ?
8.i read a book namely " nuclear power".i found this line on that book . it was an old book ( 30 years old ).
line - natural uranium metal consists of small part of u.235 which is fissionable ,and 140 times as much of another called u.238 which is not easily fissionable.so scientists had to extract u.235 metal - a huge and very costly task.
doubt - is u.235 a metal or atom ? does natural uranium contains u.235 , 236,7..8...9...?
9.how voltage of 400,000 stepped down at transformer to 11,000 or else?
10.why can't we do nuclear fusion in Earth using the temperature ( heat ) emitted in nuclear fission ? [ i read in that same book . it says that " man is not yet able to do nuclear fusion) )
10.how do the nuclear fission begins in a reactor core? can you explain the whole process simply ?
thanks in advance :)
waiting for your replies and to ask more questions ...